Chemical Engineering Question
Page 1 of 10 2023-24_S3_EN8918T_Applied and Process Heat Transfer_Project CILO No. 1 2 3 4 CILO Integrate specialist theories, principles and concepts of the modes of heat transfer to critically analyze and evaluate heat transfer in mixed mode situations in practical project settings Apply creative analytical design skills to enhance the rate of heat transfer in complex applications for industrial use Apply industry standard heat transfer techniques to solve complex industrial heat exchanger problems Apply standard investigative methods and design procedure for the thermal analysis of heat exchangers in power plants (Tabel 1: CILOs coverage) Instructions This Assessment contributes 30% of the Final Grade • Evidence must be submitted individual. • • • • • • • • Evidence of this assessments are report followed by presentation Any plagiarized work will be awarded zero mark. Use Font theme: Times New Roman/Arial/Tahoma, Font size: 12, Paragraphs: 1.5-line spacing. Student should use textbook and other open resources. Convert the dimensional units whenever it is necessary Upload your long report electronically in Moodle on or before the due date or Submit to your tutor. The total number of pages for this assignment is 9 pages including the cover page. Design and Analysis of Heat Exchanger Scenario: You have been recently appointed as a junior engineer in reputed process engineering consultancy company, engaged to provide detailed engineering for chemical manufacturing and related processes. As a part of technical team, your supervisor asked you to complete several tasks related to thermal design and analysis of heat exchanger. Tasks mainly includes analyze types of heat exchangers, thermal design of a) double pipe heat exchanger, b) single effect evaporator, and c) condenser. Page 2 of 10 Task 1 (Analysis the types of Heat Exchanger) (20 Marks) Analyse given type of heat exchangers with respect to (i) Labelled schematic diagram. (ii) Working principle (iii) 3 or more Advantages and Disadvantages (iv) 3 or more Industrial Applications. Heat Exchanger Types a) Double Pipe Heat Exchanger b) Sheel and Tube Heat Exchanger c) Plate and Frame Heat Exchanger d) Forced circulation evaporator Note: Plagiarism will be checked at Moodle Task evidence: – Theoretical report with clear labelled diagrams – Power point slides – List of references Page 3 of 10 Task 2 (Thermal Design of Double Pipe Heat Exchanger) (45 Marks) Perform thermal design and analysis of for given case of double pipe heat exchanger, and answer the following Case: A double pipe heat exchanger is used to cool A Sulfuric acid from B to C by D water with initial temperature E. The internal diameter of inside and outside pipe are F and G respectively, while thickness of both pipes is 1.25 cm. Sulfuric acid is flowing through the inside pipe. Data: Properties at mean temperature Density, (kg/m3) Specific Heat Capacity, (kJ/kg.K) Thermal Conductivity (W/m.K) Dynamic Viscosity, (Pa.s) Sulfuric acid 1800 1.465 0.3023 11.194 x 10-3 Water 998.2 4.186 0.668 1.1 x 10-3 (Tabel 2: chemical properties for task 1) Thermal conductivity of metal pipe is 46.51 W/(m.K) Note: – Show your calculations with formula and substitution. – Use 3 significant figures of values in calculator. – Students must use their respective assigned values of A, B, C, D, E, F, G from table 3 – Use the Dittus-Bolter correlation to calculate inside and outside heat transfer coefficients. Evaluate: (i) Outlet water temperature (oC) (2 Marks) (ii) Draw Temperature vs Length profile (Parallel and Counter flow) (2 Marks) (iii) Log mean temperature difference (LMTD) (Parallel and counter flow) (6 Marks) (iv) Inside heat transfer coefficient (hi) in (W/m2.K) (6 Marks) (v) Outside heat transfer coefficient (ho) in (W/m2.K) (6 Marks) (vi) Overall heat transfer coefficient in (W/m2.K) (4 Marks) Page 4 of 10 (vii) Area and Length of heat exchanger by LMTD analysis (Parallel and Counter flow) (4 Marks) (viii) Area and Length of heat exchanger by effectiveness-NTU analysis (Parallel and Counter flow) (10 Marks) (ix) Discuss above results (5 Marks) Task 2 (Double Pipe HE) Assigned Data S.N. 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. 23. 24. 25. 26. ID A Tons/Day B (oC) C (oC) D Tons/Day E (oC) F (cm) G (cm) 202306605 202306668 202306600 202306606 202306610 202306657 202306763 202306659 202306618 202306712 202306607 202306599 202306714 202306658 202306694 202306642 202306762 202306644 202306646 202306641 202306617 202306611 202306750 202306693 202306751 202306754 301 61 41 501 10 7.6 12.6 302 61.5 41.5 502 10.5 7.7 12.7 303 62 42 503 11 7.8 12.8 304 62.5 42.5 504 11.5 7.9 12.9 305 63 43 505 12 8 13 306 63.5 43.5 506 12.5 8.1 13.1 307 64 44 507 13 8.2 13.2 308 64.5 44.5 508 13.5 8.3 13.3 309 65 45 509 14 8.4 13.4 310 65.5 45.5 510 14.5 8.5 13.5 311 66 46 511 15 8.6 13.6 312 66.5 46.5 512 15.5 8.7 13.7 313 67 47 513 16 8.8 13.8 314 67.5 47.5 514 16.5 8.9 13.9 315 68 48 515 17 9 14 316 68.5 48.5 516 17.5 9.1 14.1 317 69 49 517 18 9.2 14.2 318 69.5 49.5 518 18.5 9.3 14.3 319 70 50 519 19 9.4 14.4 320 70.5 50.5 520 19.5 9.5 14.5 321 71 51 521 20 9.6 14.6 322 71.5 51.5 522 20.5 9.7 14.7 323 72 52 523 21 9.8 14.8 324 72.5 52.5 524 21.5 9.9 14.9 325 73 53 525 22 10 15 326 73.5 53.5 526 22.5 10.1 15.1 Page 5 of 10 27. 202306621 28. 12010919 29. 202306643 30. 202306679 327 74 54 527 23 10.2 15.2 328 74.5 54.5 528 23.5 10.3 15.3 329 75 55 529 24 10.4 15.4 330 75.5 55.5 530 24.5 10.5 15.5 (Tabel 3: Assigned data for task 2) Task 2 (Double Pipe HE) evidence: – Problem solution with detail calculations, formula and substitution – Discussion of the results (maximum 2 pages) – Results power point presentation – List of references Task 3 (Thermal Design of Evaporator Heat Exchanger) (15 Marks) Perform thermal design and analysis of for, given case of milk evaporator, and answer the following Case: Milk is concentrated in a vertical tube evaporator from H solids to I solids. The evaporator operates at 65 ⁰C with feed entering at 30 oC. Steam is used at 95 oC. the overall heat transfer coefficient is 1350 W/(m2.K). Feed rate for milk is J. Take Cp of milk 4.175 kJ/kg.K Note: – Show your calculations with formula and substitution. – Students must use their respective assigned values of H, I, J from table 4 Evaluate: (i) Draw labled diagram with input and output mass & energy streams (2 Marks) (ii) Evaporator Capacity (kg/hr) (4 Marks) (iii) Steam consumption (kg/hr) (4 Marks) (iv) Economy (2 Marks) (v) Heat Transfer Area (m2) (3 Marks) Page 6 of 10 Task 3 (Evaporator) Assigned Data S.N. ID H (wt %) I (wt %) J (kg/hr) 1 202306605 202306668 202306600 202306606 202306610 202306657 202306763 202306659 202306618 202306712 202306607 202306599 202306714 202306658 202306694 202306642 202306762 202306644 10 50 8000 10.5 50.5 8050 11 51 8100 11.5 51.5 8150 12 52 8200 12.5 52.5 8250 13 53 8300 13.5 53.5 8350 14 54 8400 14.5 54.5 8450 15 55 8500 15.5 55.5 8550 16 56 8600 16.5 56.5 8650 17 57 8700 17.5 57.5 8750 18 58 8800 18.5 58.5 8850 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 Page 7 of 10 19 20 21 22 23 24 25 26 27 28 29 30 19 59 202306646 19.5 59.5 202306641 20 60 202306617 20.5 60.5 202306611 21 61 202306750 21.5 61.5 202306693 22 62 202306751 22.5 62.5 202306754 23 63 202306621 23.5 63.5 12010919 24 64 202306643 24.5 64.5 202306679 (Tabel 4: Assigned data for task 3) 8900 8950 9000 9050 9100 9150 9200 9250 9300 9350 9400 9450 Task 3 (evaporator) evidence: – Problem solution with detail calculations, formula and substitution – Results power point presentation – List of references Task 4 (Thermal Design of Condenser Heat Exchanger) (20 Marks) Perform thermal design and analysis of for, given case of condenser, and answer the following Case: A 2×2 array tube condenser is used to condense ethanol vapor by water. Ethanol vapor is at its saturation temperature 78.3 oC and condensing outside the tubes. Water flowing in tubes with average temperature of 29 oC. the outer diameter and length of each tube are D and L respectively. Data and assumption: – The water side heat transfer coefficient = 2950 W/(m2.K) – Neglect the conduction resistance through the pipe wall The properties of ethanol and water are given below Properties at mean temperature Heat of vaporization (kJ/kg) Ethanol 856 Water 2431 Page 8 of 10 Density, (kg/m3) Specific Heat Capacity, (kJ/kg.K) Thermal Conductivity (W/m.K) Dynamic Viscosity, (Pa.s) 769 2.46 0.1744 0.6 x 10-3 998.2 4.186 0.668 1.1 x 10-3 (Tabel 5: chemical properties for task 4) Note: – Show your calculations with formula and substitution. – Students must use their respective assigned values of D, L from table 6 Evaluate: (i) Outside heat transfer coefficient (ho) in (W/m2.K) (If tube bundle horizontal) (4 marks) (ii) Outside heat transfer coefficient (ho) in (W/m2.K) (If tube bundle vertical) (4 marks) (iii) Overall heat transfer coefficient for vertical and horizontal tubes in (W/m2.K) (4 Marks) (iv) Rate of condensation (kg/s) (If tube bundle horizontal) (2 marks) (v) Rate of condensation (kg/s) (if tube bundle vertical) (2 Marks) (vi) No. of vertical tubes required If 3000 kg/hr ethanol supplied to the condenser (4 Marks) Task 4 (Condenser) Assigned Data S.N. ID D (mm) L (m) 1 202306605 202306668 202306600 202306606 202306610 202306657 202306763 30 2.8 30.2 2.82 30.4 2.84 30.6 2.86 30.8 2.88 31 2.9 31.2 2.92 2 3 4 5 6 7 Page 9 of 10 8 31.4 2.94 202306659 9 31.6 2.96 202306618 10 31.8 2.98 202306712 11 32 3 202306607 12 32.2 3.02 202306599 13 32.4 3.04 202306714 14 32.6 3.06 202306658 15 32.8 3.08 202306694 16 33 3.1 202306642 17 33.2 3.12 202306762 18 33.4 3.14 202306644 19 33.6 3.16 202306646 20 33.8 3.18 202306641 21 34 3.2 202306617 22 34.2 3.22 202306611 23 34.4 3.24 202306750 24 34.6 3.26 202306693 25 34.8 3.28 202306751 26 35 3.3 202306754 27 35.2 3.32 202306621 28 35.4 3.34 12010919 29 35.6 3.36 202306643 30 35.8 3.38 202306679 (Tabel 6: Assigned data for task 4) Task 4 (Condenser) evidence: – Problem solution with detail calculations, formula and substitution – Results power point presentation – List of references —————————————————End of Assessment Tasks———————————————— Page 10 of 10
Collepals.com Plagiarism Free Papers
Are you looking for custom essay writing service or even dissertation writing services? Just request for our write my paper service, and we'll match you with the best essay writer in your subject! With an exceptional team of professional academic experts in a wide range of subjects, we can guarantee you an unrivaled quality of custom-written papers.
Get ZERO PLAGIARISM, HUMAN WRITTEN ESSAYS
Why Hire Collepals.com writers to do your paper?
Quality- We are experienced and have access to ample research materials.
We write plagiarism Free Content
Confidential- We never share or sell your personal information to third parties.
Support-Chat with us today! We are always waiting to answer all your questions.
